I noticed when i work (hgv driver) i feel fine. Since the start of the Xmas break ive not been fine - been getting loads of skipped beats and hardly sleeping. When i work i dont have the facilities to have a brew so i go without, whilst when not in work i have two or three strong coffees. Even though these cuppas are decaf ive decided to quit any type of brew and see how i feel. Day one was today and no heart palpitations. Does anybody else have experiences similar to this?